Grinding glass tumblers.



'I'. WOODRUFF. GRINDING GLASS TUMBLERS. APPLICATION FILED num?, mos'.J`

2 SHEETS-SHEET 1.

l Patented Dec. 1, 1908.

Mae/@zar P. WooDRUFP.

GRINDING GLASS TUMBLERS.

APPLICATION FILED JAN. 27, 1908.

905 3486. Patented Dec* 1, 1908.

2 SHEETS-SHEET 2. J5

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Lipman m :muy 21, isos. sum m. 442,117;

, Beit known :that l, FRANK 'Wdomgurn la resident of Rochester,- in the county of'. Beaver and State of Pennsylvania, have in vented certain newI and useful Improvement-s in Grinding Glass `Tumblers, of which 'the ltto'llmving is a specification.;

Thin glass tumblers--known in 'the trade like 'lanks which'are capped -oif to form theytumblerlmouth. This Tleaves a 4rough edge which must -be ground oil, and it isto, `the .grinding of these-edges that the present invention relates..

The rimary ob'ect is to* rov-ide nfor the 4acoornp is'hmento this grin' ing automatically '-by, simplyfplacing 'the 'tumblers Ain- `verted osition' on a vI'novrng grindingsur-l fface.l I'he :turtlens Aare 'held-from movin with such surface, and `may-even be an op 'osite direction, and .the manipula- Iton'of t e 4tumblers is preferably Such that "each one rotates on lthe grinding surface as 'the latter moves therebeneath, the result being 'that the edges are 'grou'nd'perfectlyand very rapidly and I. lwith 4little or n o loss throu h' breakage.

A urther feature of the `viirvention the `facility and y:rapidity with which the'turn- 'hlers are handledby a Single operator, also '.the capacity of the machine for grinding a lar e number ofV tumblers at`pne`-time ln the accompanying draW1x1gS.,`Fgure1 is a' vert ical setionalview of the preferred form of apparatus by which the invention fis racticed andfin which it is embodied, land ig'. 2 -is a ltop plan View, half of the upper portion of the mechanism being broken away .to illustrate the parts beneath. Fig.V 8, is' a ',cross sectional view, enlarged, of one of the tumbler holding arms, taken online3 3 of Fig. 2. Fi 4 1s a detail View of one of the tumblers with a weight resting thereon;

Referring-to the drawings, 2 designates a tubular'post which may be cast integral with the drip receptacle 3 at the .lower end thereof. Secured to the u per end of the4 post Vis the horizontal circu ar plate 4, and secured to and rising from this Aplate is the head "5, the disk beinfr secured to lthev upper end of operating shaft 8 which, ini the vpresl ent enibodiment, iis extended downwardly through post 2 and provided with-.a4 driving driving-mechanism may be difieren, y arplate 4 bn; ball bearing 10 is the rng'like-plate'11,.-cogged on its inner an internalgear. Securet'lito-an radiating outward 'from the ring-'like 11 are arms `13jharvingupwarfl extensions '14 a'tftheir 6 andrise above "the same. e* v Y p 15 are. horizontal arms s aced slightly above 1the/top surface of disli 6 with their outer 'ends 'secured to the upward trm-ex titer, ends 'which clear the .outer ofjdsk lperiphery' at'12, thus constlt-utin lthe plate secllr'ed/'to ring `16V similarly spaced 'above v .at center, as ,indlcatef at 6', and't'his de-v pression and the ringform a receptacle for the pulverulent abrasive 17, withl a water drip 18 arranged thereabovev and adjusted to maintain the abrasive at the proper fluid `or semi-,fluid consistency. 'The rotation of the grinding disk causes the `abrasive to move outwardly over its top 4surface in the presence of the edges ,of tumbler-s A. The f tendency of-the abrasive 1s to work toward the periphery of the` disk, discharging over the 'edge thereof, and to -conl'ine and'collect these rippings a funnel-'like deflector 1'9 issecured to the arm extensions 14, and forms araised yrim 20 around the grinding disk but separated therefrom. The liquid abrasive dischar ing over the ed e. ofthe disk is thus directe downward and inwardlyr so as to 21 may be secured to gear .11 for preventi110' the abrasive from reaching bearing 10.

Llhepur ose'of arms `15 is to prevent the tumblers rom moving with the ly such that the arms are caused to rotate oppositely -to the disk, though at lower speed. "This 1s accomplished bygearing interposed between shaft 8 and the internal gear 11, the gearing bein here shown consisting of a pinion 22 on te shaft, with the large ar wheel 23 meshing therewith and journa' ed on plate g4, while secured to wheel 23 is pini-on 24,which meshes Awith the cogged surface 12 olf gear rinding disk, and the arrangement is prefered) 11. By this means said gear and the arms l supported thereby both below and above the grinding disk are rotated' ina directionop-4 osite to that c in which the disk'rotatesl.'

. ach .of arms l5 vhas itstop -andfside lfaces 5 covered with wood strips .15 for engaging thetumblers without injuring them. A similar wood strip 25 is secured'tothe inner side 'Cfr-im 20 between adj acentA arms 15 for similarly engaging` and protecting theA tumblers. .10 In operation, the single operator of the machine takes his" stand or station at any convenient point,'say point S, andas each "row of vtumblers is moved in front of him, he simply removes theloutermo'st tumbler of the row and places a fresh tumbler at the inner,...

end ofthe row without interrupting the cn` tinuous movementof the machine, the motion'A of grinding disk 6 causing thetumblers to rotate outwardly onthe disk as far as pios'-v sible, with Ythe .outermost tumbler 'of each row engagino'4 strip 25., Bythis mea-ns all :the tumb ers are subjected to the same .amount of grinding action. There can be absolutely no confusion, and the work is per.

fectly uniform. For grinding tumble'rs not hea-Vy enough to bear on the grinding'disk' with suiicient pressure, a weight-26, preferably of lead', may rbe placed on each tumbler,

asshown in F ig, 4.

'It 's characteristic of the. operation vthat 40 for the purpose. 'As the'sides of the tum-A blers have contact only with the wood faces lof :the strips there can be no lbreakage or in- ]ury to the lass such as would occur if the faces Wereo iron or other metal.

I claim y l. A tumbler grinding machine compris#- ing horizontal'arms, a grinder rotatable-beneath' the arms' adapted to support rows 'of tumblers which bear against the arms with the tumblers of each row bearing against each other, the motion of the support and blers outwardly over the grinder, and stop l' 55 means engaged by theoutermost tumbler of each row. 2. A tumble-ferv grinding vmachinecompris- .v ingl a 'serres 'of horizontal radially -disposed armspa grinder rotatablefbeneath the arms; 6 0 onffan axis concentric therewith andadapted' lgzinstf je'a'ch arm; and the rtuneblers'v f 'of ea'chffrownbearing against each' other, the

m `)vementV fof the support andthe 'resistance' ing a horizontal rotatablev tumblerk,E grintler,lfl v .arms above the grinderg.and-'againsh,whichL -the tumblers bear and 'by' which vtheyiarle'flli .held from moving with the grinder, fand' sus'- taining means beneath t .rection oppositel to which the rotates, and tumbler engagin arms carried -by'said frame abovefthefgrin en.:V Y n ing-a'vertical rotatablefshaft, a horizontal y'the grinder with sustaining/means extending v 'thereto -from the ringlike1plater 4the res1stance.of the arms operatingto ro- .p tate each tumbler and work lthe rows of tumandto work'therows of tumblersloritwgartlly over thegrinder', and .stop means'engaged-by -f'tli'fouteritumblenof each""rcnjiy;Y I. a A 4tumbler grindingfm chine" comprisinga seriesfof'connectedmrizontalarms, a 7e. grinder beneath the rotatable arms adapted to 'support `a separate row of tumblers bearing against one side of each arm and against;

"each other and sustained by the grinder, the

movement of the grinder and the resistance of the arms operating to rotate each tumbler 1 and to AInovethe rows outwardly over the grinder, stopuneans engaged by the outer'. tumbler of each row, andinecha-nism for A15o-.-

.tating the arms and the 4grinder.,rg'vlfse"80 directions. f

4. A tumbler grinding-1...I-1v1stellineiy he' grinder.- Lfor f tumbler r inga horizontal' rotatable" uniblergrind a. rame rotatable beneathfvtlie iizgrinderin 6j. A tumbler grindingl 'machine,c ompis'-y 95 ing a horizontal rotatable tumbler grinder, arms arranged radially beneath;thegrinder;V with upward extensions atl their vouterends, f, and tumbler engaging means .QabovehtheA grinder and secured to said upwardiarm ex-V tensions. j v.

,7. .A tumbler grindi machine 'comprise in ahorizontall frotata letumbler` rinder.- a brame4 rotatab e `beneaththe er, the

frame having upturn'edy extensions reaching.` 105I above the grinder, fand tumbler engaging arms extending overfthe grinder and secured to said upturned extensions.- Y I 5.

8.` A' tumbler lgrinding machinecompris- 110 tumbler grinder secured` thereto', a fixed. sup- .portbeneath thegrinder, a; ring-likefplate' 'rotatable on y the fixed supportandfgeared .to -said,.shat, j andv ware-,engaging varms- :above '9. A tumbler grindingrmachine.comprise' ing a lvertical rotatable shaft,a-horizontal tumbler grinder secured thereto, a .fixed supf port beneath thejjgrinde'r., anx-1 internall cogged ring-like plate 'rotatable on theffixe support with arms radiating..outward1 therefrom, `a. pinion on l'the `.'ver'tical,'s 'h 5 and. connecting? gearing 'interposedzbetwn .ing a horizontally V rntatable tumbler, grinderv .ai rim extending ab ve'audsustainedfree''of 13'0 1l. A tumbler ing'a horizontally rotatble tumbler grinder,

Aand a frames aced above' 9nd sustained independently o the grinder, said frame haV- ing a central rin -like' part for confining abrasive` material,V and lware-holding arms f extending -from the ring-like part .outwardly over the grinder.- l

12. A tumbler vgrinding machine comprising aJ horizontal rotatab e tumblerv grinder lialvingla central depression in top face,

and a frme'spaced nbovefand s ustined in- 15 dependently 1 ofthe, grinder,` fthe' f havving a,` central .ring-like part'` extending around ,said top. depression for: onnm abrasive material and ware-holding grins l extendingfromthering-like part outwardly 20 Aover the` grinder.

' In testimony whereofl'alx my signature: I in presence 'of two witnesses.

' FRANK WOODRUFR.

Witnesses:

J QHN'Y MoULns, RICHARD Bons. 

